The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Mar. 18, 1986
Filed:
Jun. 29, 1984
Malcolm J Wootton, Birmingham, GB;
Ivor R Harris, Birmingham, GB;
Lucas Industries Public Limited Company, Birmingham, GB;
Abstract
A hydrogen storage material for releasably storing hydrogen having a microstructure containing an alloy phase of the general formula R.sub.2 Fe.sub.17, wherein R is cerium and lanthanum and, optionally, at least one other rare earth element, and wherein a microstructure also contains from about 2 to 35% by weight, based on the total weight of all phases, of a eutectic of the formula R'/R'Fe.sub.2, wherein R' is lanthanum-starved R; the alloy phase of the general formula R.sub.2 Fe.sub.17 being present in an amount of not less than 40% by weight of the material, and the material contains less than 60% by weight of cerium based on the total amount of cerium, lanthanum and, if present, at least one other rare earth element. A method for producing such material by heat treating in an inert atmosphere so as to homogenize same and to increase the proportion of alloy phase in the material is also described.